567     ACPI_WALK_STATE         *PreviousWalkState;  in AcpiPsParseAml()  local
734         PreviousWalkState = WalkState;  in AcpiPsParseAml()
752                 if (!PreviousWalkState->ReturnDesc)  in AcpiPsParseAml()
759                         !PreviousWalkState->ImplicitReturnObj)  in AcpiPsParseAml()
761                         PreviousWalkState->ImplicitReturnObj =  in AcpiPsParseAml()
763                         if (!PreviousWalkState->ImplicitReturnObj)  in AcpiPsParseAml()
772                         PreviousWalkState->ImplicitReturnObj);  in AcpiPsParseAml()
780                     AcpiDsClearImplicitReturn (PreviousWalkState);  in AcpiPsParseAml()
783                         PreviousWalkState->ReturnDesc);  in AcpiPsParseAml()
794                 AcpiUtRemoveReference (PreviousWalkState->ReturnDesc);  in AcpiPsParseAml()
795                 AcpiDsClearImplicitReturn (PreviousWalkState);  in AcpiPsParseAml()
803         else if (PreviousWalkState->CallerReturnDesc)  in AcpiPsParseAml()
805             if (PreviousWalkState->ImplicitReturnObj)  in AcpiPsParseAml()
807                 *(PreviousWalkState->CallerReturnDesc) =  in AcpiPsParseAml()
808                     PreviousWalkState->ImplicitReturnObj;  in AcpiPsParseAml()
814                 *(PreviousWalkState->CallerReturnDesc) =  in AcpiPsParseAml()
815                     PreviousWalkState->ReturnDesc;  in AcpiPsParseAml()
820             if (PreviousWalkState->ReturnDesc)  in AcpiPsParseAml()
824                 AcpiUtRemoveReference (PreviousWalkState->ReturnDesc);  in AcpiPsParseAml()
826             if (PreviousWalkState->ImplicitReturnObj)  in AcpiPsParseAml()
830                 AcpiUtRemoveReference (PreviousWalkState->ImplicitReturnObj);  in AcpiPsParseAml()
834         AcpiDsDeleteWalkState (PreviousWalkState);  in AcpiPsParseAml()